TWI607268B - Pixel structure - Google Patents

Description

Pixel structure

The present invention relates to a pixel structure, and more particularly to a pixel structure including a first electrode having a first stem portion and a first branch portion and a second electrode having a second stem portion and a second branch portion .

As the technology of Virtual Reality matures, there are many electronic products related to virtual reality in the market, such as Head mounted display. In the prior art, electronic products related to virtual reality use computer software to create a virtual space, and use various technologies to influence the user's senses, so that the user can feel into the virtual space.

In order to allow users to feel more realistic virtual space, the continuity of virtual images is particularly important. For an electronic product that displays an image using a liquid crystal display device, the continuity of the image is highly correlated with the reaction time of the liquid crystal. When the reaction time of the liquid crystal molecules is shorter, the image displayed by the liquid crystal display device can have better continuity. Therefore, how to shorten the reaction time of liquid crystal molecules is an urgent problem to be solved.

The invention provides a pixel structure. By designing the first electrode and the second electrode in the pixel structure, the liquid crystal can have a short reaction time, thereby improving the liquid crystal efficiency.

The invention provides a pixel structure. By designing a common electrode and a pixel electrode in a pixel structure, the liquid crystal can have a short reaction time, thereby improving the liquid crystal efficiency.

A pixel structure of the present invention includes a scan line, a data line, a switching element, a first electrode, and a second electrode. The switching element is electrically connected to the scan line and the data line. The first electrode includes at least two first trunk portions and a plurality of first branch portions. The first trunk portion is substantially parallel to the direction in which the data lines extend. Each of the first branches includes at least one first extension and at least two geometries. The geometry is located between the two first stems and the first extension is between the corresponding two geometries. The width of the geometric structure in the direction of extension is greater than the width of the first extension in the direction of extension. The second electrode is separated from the first electrode. One of the first electrode and the second electrode is electrically connected to the switching element. The second electrode includes at least one second trunk and at least two second branches. The second trunk portion is located between the two first trunk portions and is substantially parallel to the direction in which the data lines extend. The at least two second branch portions extend from the second trunk portion, wherein at least two second branch portions are respectively correspondingly connected to two sides of the second trunk portion, and at least one of the at least two second branch portions includes at least one a second extension and at least one ladder structure. The ladder structure is coupled between the second trunk portion and the corresponding second extension portion. The first branch portion and the second branch portion are staggered along the extending direction of the data line.

A pixel structure of the present invention includes a scan line and a data line, a switching element, a common electrode, and a pixel electrode. The switching element is electrically connected to the scan line and the data line. The common electrode includes a first trunk portion and at least two first branch portions. The first trunk portion is substantially parallel to the direction in which the data lines extend. At least two first branch portions extend from the first trunk portion. At least two first branch portions are respectively connected to both sides of the first trunk portion. At least one of the at least two first branch portions includes at least one first extension and at least one first ladder structure. At least one first ladder structure is coupled between the first trunk portion and the corresponding first extension portion. The pixel electrode is separated from the common electrode and electrically connected to the switching element. The pixel electrode includes a second stem portion and at least two second branch portions. The second trunk overlaps with the first trunk. At least two second branches extend from the second trunk. At least two second branch portions are respectively connected to both sides of the second trunk portion. At least one of the at least two second branch portions includes at least one second extension and at least one second ladder structure. At least one second trapezoidal structure is coupled between the second stem portion and the corresponding second extension. The first branch portion and the second branch portion are staggered along the extending direction of the data line.

Based on the above, the first electrode in the pixel structure includes at least two first trunk portions and a plurality of first branch portions, the second electrode includes at least one second trunk portion and at least two second branch portions, and the first portion The branch portion and the second branch portion are staggered along the extending direction of the data line. Therefore, the electric field formed by the first electrode and the second electrode enables the liquid crystal to have a shorter reaction time, thereby improving the liquid crystal efficiency. The first branch portion of the first electrode includes a geometric structure, and the second branch portion of the second electrode includes a trapezoidal structure. Therefore, the electric field of the first electrode and the second electrode can form an equipotential line having a density change, and the flow direction of the liquid crystal driving and recovery is substantially the same direction, thereby further shortening the reaction time of the liquid crystal.

Based on the above, the common electrode in the pixel structure includes a first trunk portion and at least two first branch portions, the pixel electrode includes a second trunk portion and at least two second branch portions, and the first branch portion and the second branch portion The branches are staggered along the direction in which the data lines extend. Therefore, the electric field formed by the common electrode and the pixel electrode enables the liquid crystal to have a short reaction time, thereby improving the liquid crystal efficiency.

The above described features and advantages of the invention will be apparent from the following description.

1 is a top plan view of a pixel structure 100 in accordance with an embodiment of the present invention. Referring to FIG. 1 , the pixel structure 100 includes a scan line 120 , a data line 130 , a switching element TFT1 , a first electrode 150 , and a second electrode 140 .

The switching element TFT1 includes, for example, a semiconductor layer 110, a gate 122, a drain 134, and a source 132. The method of forming the switching element TFT1 includes, for example, forming a semiconductor layer 110 on a substrate. After the semiconductor layer 110 is formed, a gate insulating layer and a gate 122 are sequentially formed on the semiconductor layer 110, and the gate 122 is electrically connected to the scan line 120. An insulating layer covering the gate 122 is formed. An opening O1 and an opening O2 are formed in the insulating layer. Next, a drain 134 and a source 132 electrically connected to the data line 130 are formed. The drain 134 is electrically connected to the semiconductor layer 110 through the opening O2, and the source 132 is electrically connected to the semiconductor layer 110 through the opening O1. connection. In the present embodiment, the switching element TFT1 is a thin film transistor of a top gate structure, but the present invention is not limited thereto. In other embodiments, the switching element TFT1 may also be a thin film transistor of a bottom gate structure.

An insulating layer is disposed between the first electrode 150 and the switching element TFT1 in the pixel structure 100, and the first electrode 150 and the drain 134 of the switching element TFT1 are electrically connected through the opening O3 in the insulating layer.

The first electrode 150 includes a first trunk portion 152A, a first trunk portion 152B, and a plurality of first branch portions 153. The first trunk portion 152A and the first trunk portion 152B are substantially parallel to the extending direction D1 of the data line 130. In the present embodiment, a portion of the first trunk portion 152A overlaps with a portion of the data line 130, and a portion of the first stem portion 152B overlaps with another portion of the adjacent data line 130 of the adjacent row, although the invention is not limited thereto. In other embodiments, the first stem portion 152A and the first stem portion 152B may completely overlap the portion of the data line 130 and the portion of the adjacent row of data lines 130, respectively. In other embodiments, the first stem portion 152A and the first stem portion 152B are adjacent to each other and do not overlap the data line 130 at all.

The first branch portion 153 of the first electrode 150 is located between the first trunk portion 152A and the first trunk portion 152B. Each of the first branches 153 includes a first extension 156, a geometry 154A, and a geometry 154B. The geometry 154A and the geometry 154B are located between the first stem portion 152A and the first stem portion 152B, the first extension portion 156 is located between the geometry 154A and the geometry 154B, and the first extension portion 156 is coupled to the corresponding geometry Between 154A and geometry 154B. The width of the geometric structure 154A and the geometric structure 154B in the extending direction D1 is greater than the width of the first extending portion 156 in the extending direction D1. Specifically, a portion of the geometric structure 154A away from the first extending portion 156 is in the extending direction D1. The width of the upper portion and the portion of the geometry 154B remote from the first extension 156 are greater in the direction of extension D1 than the width of the first extension 156 in the direction of extension D1. In one embodiment, the geometry 154A and the geometry 154B are trapezoidal in shape, and the widest bottom of the geometry 154A and the geometry 154B (ie, the portion having the largest width in the direction of extension D1) is associated with the first main The cadre 152A and the first trunk portion 152B are connected, and the acute angle formed between the side wall SW1 of the geometric structure 154A and the side wall SW2 of the geometric structure 154B and the extending direction D1 of the data line 130 is 30 degrees to 75 degrees, but the invention is not limited thereto. this. In other embodiments, the geometry can be other geometric shapes. In an embodiment, the shape of the first extension portion 156 is a rectangle, and the line width of the first extension portion 156 in the extension direction D1 is exemplified by 2 micrometers to 4 micrometers.

In the present embodiment, the first electrode 150 further includes a connecting portion 151A and a connecting portion 151B. The connecting portion 151A and the connecting portion 151B respectively connect the first trunk portion 152A and the first trunk portion 152B. For example, the connecting portion 151A, The connecting portion 151B, the first trunk portion 152A, and the first trunk portion 152B together form an annular structure or a mesh structure, and the connecting portion 151A is electrically connected to the drain 134 of the switching element TFT1. In this embodiment, the first trunk portion 152A, the first trunk portion 152B, the connecting portion 151A, and the connecting portion 151B collectively constitute an outer frame of the first electrode 150, and the first branch portion 153 is located at the first trunk portion 152A, first. The trunk portion 152B, the connecting portion 151A, and the connecting portion 151B are collectively formed in the outer frame, but the present invention is not limited thereto. The first electrode 150 may not include the connection portion 151A and the connection portion 151B, and the first electrode 150 may be connected to the drain 134 of the switching element TFT1 by the first stem portion 152A, the first stem portion 152B or the first branch portion 153. Electrical connection.

The second electrode 140 is separated from the first electrode 150. The second electrode 140 includes a second trunk portion 142, a second branch portion 143A, and a second branch portion 143B. The second trunk portion 142 is located between the first trunk portion 152A and the first trunk portion 152B and is substantially parallel to the extending direction D1. The second trunk portion 142 is exemplified by a position adjacent to the connection portion 151A to a position adjacent to the connection portion 151B. The second branch portion 143A and the second branch portion 143B respectively extend from the second trunk portion 142, and the second branch portion 143A and the second branch portion 143B are correspondingly connected to both sides of the second trunk portion 142. The second branch portion 143A includes a second extension portion 146A and a trapezoidal structure 144A. The trapezoidal structure 144A is coupled between the second stem portion 142 and the corresponding second extension portion 146A. The second branch portion 143B includes a second extension portion 146B and a trapezoidal structure 144B. The trapezoidal structure 144B is coupled between the second stem portion 142 and the corresponding second extension portion 146B. The adjacent trapezoidal structure 144A and the trapezoidal structure 144B are exemplified in a mirror image configuration with respect to the second trunk portion 142. The second branch portion 143A and the second branch portion 143B are alternately arranged with the first branch portion 153 along the extending direction D1.

In an embodiment, the angle between the side wall SW3 of the trapezoidal structure 144A and the side wall SW4 of the trapezoidal structure 144B and the extending direction D1 is, for example, 30 degrees to 75 degrees. Due to the design of the trapezoidal structure 144A and the trapezoidal structure 144B, the electric fields of the first electrode and the second electrode can form an equipotential line having a density change, thereby driving and recovering the liquid crystal (the liquid crystal arrangement is driven from a voltage-driven state to a voltage-free state) The flow of the process is substantially in the same direction, further shortening the reaction time of the liquid crystal.

In an embodiment, the second extension portion 146A and the second extension portion 146B are rectangular, and the second extension portion 146A and the second extension portion 146B have the same line width in the extension direction D1. In an embodiment, the line width of the second extension portion 146A and the second extension portion 146B in the extending direction D1 is, for example, 2 micrometers to 4 micrometers. In an embodiment, the second extension portion 146A and the second extension portion 146B of the second electrode 140 extend to the lower side of the first trunk portion 152A and the first trunk portion 152B of the first electrode 150, respectively, and thereby can reduce the data. The effect of the line 130 on the electrical location formed by the first electrode 150.

In one embodiment, the distance between the first extension 156 of the first electrode 150 and the second extension 146A of the adjacent second electrode 140 and the adjacent second extension 146B is exemplified by 2 microns to 4 microns. In an embodiment, the distance between the first stem portion 152A of the first electrode 150 and the first stem portion 152B and the second stem portion 142 of the adjacent second electrode 140 is 5 to 10 micrometers, respectively.

In the present embodiment, the second electrode 140 is electrically connected to the common voltage, and the first electrode 150 is electrically connected to the switching element TFT1, but the invention is not limited thereto. In other embodiments, the first electrode 150 is electrically connected to the common voltage, and the second electrode 140 is electrically connected to the switching element TFT1. In other words, the present invention does not limit the second electrode 140 to be a common electrode and the first electrode 150 to a pixel electrode. In the present embodiment, the film layer where the second electrode 140 is located is located between the film layer where the first electrode 150 is located and the film layer where the data line 130 is located, but the invention is not limited thereto. In other embodiments, the film layer where the first electrode 150 is located may be located between the film layer where the second electrode 140 is located and the film layer where the data line 130 is located. In other words, in other embodiments, the film layer where the first electrode 150 is located and the film layer where the second electrode 140 is located may be exchanged with each other.

In this embodiment, the first electrode 150 and the second electrode 140 are designed to divide the liquid crystal layer in the display into four liquid crystal actuating regions having horizontal electric fields in different directions, and the liquid crystals of adjacent liquid crystal actuating regions can be The driving and recovery flow directions of the molecules are substantially adjusted to the same direction, and the reaction time of the liquid crystal molecules is greatly shortened.

2 is a top plan view of a pixel structure 200 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 2 follows the same reference numerals and parts of the embodiment of FIG. 1 , wherein the same or similar reference numerals are used to designate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 200 of FIG. 2 and the pixel structure 100 of FIG. 1 is that the first electrode 250 and the second electrode 240 of the pixel structure 200 are different from the first electrode 150 and the second electrode 140 of the pixel structure 100. shape.

The first electrode 250 includes a first stem portion 252A, a first stem portion 252B, and a plurality of first branch portions 253. The first trunk portion 252A and the first trunk portion 252B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 253 of the first electrode 250 is located between the first trunk portion 252A and the first stem portion 252B. Each of the first branch portions 253 includes a first extension 256, a geometry 254A, a geometry 254B, a protrusion 258A, and a protrusion 258B. Geometry 254A and geometry 254B are located between first stem portion 252A and first stem portion 252B, first extension portion 256 is located between geometry 254A and geometry 254B, and first extension portion 256 is coupled to the corresponding geometry Between 254A and geometry 254B. The width of the geometric structure 254A and the geometric structure 254B in the extending direction D1 is greater than the width of the first extending portion 256 in the extending direction D1. Specifically, a portion of the geometric structure 254A away from the first extending portion 256 is in the extending direction D1. The width of the upper portion and the portion of the geometry 254B remote from the first extension 256 are greater in the direction of extension D1 than the width of the first extension 256 in the direction of extension D1. The protrusions 258A and the protrusions 258B are located between the second trunk portion 2421 of the second electrode 240 and the second trunk portion 2422. The adjacent protrusions 258A and the protrusions 258B are exemplified in a mirror image configuration with respect to the first extension portion 256.

In one embodiment, the shape of the protrusion 258A and the protrusion 258B includes a triangle, wherein the bottom of the protrusion 258A and the protrusion 258B are connected to the first extension 256, and the protrusion 258A and the protrusion 258B are respectively adjacent to the other one. The second extension 256, and the top angle of the protrusion 258A and the protrusion 258B is 60 degrees to 150 degrees, where the top angle refers to the angle of the tip end portion of the first extension portion 256 that is connected away from the bottom thereof. In an embodiment of the invention, the protrusion 258A is disposed on both sides of the second extension portion 256 corresponding to the protrusion 258B, and the protrusions 258A and the apex of the protrusion 258B are aligned with each other.

The second electrode 240 is separated from the first electrode 250. The second electrode 240 includes a second trunk portion 2421, a second trunk portion 2422, a second branch portion 2431A, a second branch portion 2431B, a second branch portion 2432A, and a second branch portion 2432B. The second trunk portion 2421 and the second trunk portion 2422 are located between the first trunk portion 252A and the first trunk portion 252B and are substantially parallel to the extending direction D1.

The second branch portion 2431A and the second branch portion 2431B respectively extend from the second trunk portion 2421, and the second branch portion 2431A and the second branch portion 2431B are correspondingly connected to both sides of the second trunk portion 2421, adjacent to the second The branch portion 2431A and the second branch portion 2431B are exemplified in a mirror image with respect to the second trunk portion 2421. The second branch portion 2431A includes a second extension portion 2461A and a trapezoidal structure 2441A. The trapezoidal structure 2441A is coupled between the second trunk portion 2421 and the corresponding second extension portion 2461A. The second branch portion 2431B includes a second extension portion 2461B and a trapezoidal structure 2441B. The trapezoidal structure 2441B is connected between the second trunk portion 2421 and the corresponding second extension portion 2461B.

The second branch portion 2432A and the second branch portion 2432B respectively extend from the second trunk portion 2422, and the second branch portion 2432A and the second branch portion 2432B are correspondingly connected to both sides of the second trunk portion 2422, adjacent to the second The branch portion 2432A and the second branch portion 2432B are exemplarily mirrored with respect to the second trunk portion 2422. The second branch portion 2432A includes a second extension portion 2462A and a trapezoidal structure 2442A. The trapezoidal structure 2442A is coupled between the second trunk portion 2422 and the corresponding second extension portion 2462A. The second branch portion 2432B includes a second extension portion 2462B and a trapezoidal structure 2442B. The trapezoidal structure 2442B is coupled between the second trunk portion 2422 and the corresponding second extension portion 2462B.

In an embodiment, the second branch portion 2431B and the second branch portion 2432A are connected between the second trunk portion 2421 and the second trunk portion 2422, and the second branch portion 2431B is located at the second trunk portion 2421 and the second branch portion 2432A. The second branch portion 2432A is located between the second branch portion 2431B and the second trunk portion 2422. The second branch portion 2431A, the second branch portion 2431B, the second branch portion 2432A, and the second branch portion 2432B are alternately arranged with the first branch portion 253 along the extending direction D1.

3 is a top plan view of a pixel structure 300 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 3 follows the same reference numerals and parts of the embodiment of FIG. 2, wherein the same or similar elements are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 300 of FIG. 3 and the pixel structure 200 of FIG. 2 is that the first electrode 350 and the second electrode 340 of the pixel structure 300 are different from the first electrode 250 and the second electrode 240 of the pixel structure 200. shape.

The first electrode 350 of the pixel structure 300 includes a first stem portion 352A, a first stem portion 352B, and a plurality of first branch portions 353. The first trunk portion 352A and the first trunk portion 352B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 353 of the first electrode 350 is located between the first trunk portion 352A and the first trunk portion 352B. Each of the first branch portions 353 includes a first extension 356, a geometry 354A, a geometry 354B, a protrusion 358A, a protrusion 358B, a protrusion 358C, and a protrusion 358D. The geometry 354A and the geometry 354B are located between the first stem portion 352A and the first stem portion 352B, the first extension portion 356 is located between the geometry 354A and the geometry 354B, and the first extension portion 356 is coupled to the corresponding geometry Between 354A and geometry 354B. The width of the geometric structure 354A and the geometric structure 354B in the extending direction D1 is greater than the width of the first extending portion 356 in the extending direction D1. Specifically, a portion of the geometric structure 354A away from the first extending portion 356 is in the extending direction D1. The width of the upper portion and the portion of the geometry 354B remote from the first extension 356 are greater in the direction of extension D1 than the width of the first extension 356 in the direction of extension D1. The protrusion 358A and the protrusion 358B are located between the second trunk portion 3422 and the second trunk portion 3423 of the second electrode 340, and the protrusion 358C and the protrusion 358D are located at the second trunk portion 3421 of the second electrode 340 and the second main portion Between the cadres 3422. In one embodiment of the invention, the distance between the apex of the protrusion 358A and the apex of the protrusion 358C is about 10 microns to 20 microns, and the distance between the apex of the protrusion 358B and the apex of the protrusion 358D is about 10 From micron to 20 microns, the distance between the apex of the protrusion 358A and the apex of the protrusion 358C is approximately equal to the distance between the apex of the protrusion 358B and the apex of the protrusion 358D.

The second electrode 340 is separated from the first electrode 350. The second electrode 340 of the pixel structure 300 includes a second trunk portion 3421, a second trunk portion 3422, a second trunk portion 3423, a second branch portion 3431A, a second branch portion 3431B, a second branch portion 3432A, and a second branch portion. 3432B, second branch portion 3433A, and second branch portion 3433B. The second trunk portion 3421, the second trunk portion 3422, and the second trunk portion 3423 are located between the first trunk portion 352A and the first trunk portion 352B and are substantially parallel to the extending direction D1.

The second branch portion 3431A and the second branch portion 3431B respectively extend from the second trunk portion 3421, and the second branch portion 3431A and the second branch portion 3431B are correspondingly connected to both sides of the second trunk portion 3421. The second branch portion 3431A includes a second extension portion 3461A and a trapezoidal structure 3441A. The trapezoidal structure 3441A is connected between the second trunk portion 3421 and the corresponding second extension portion 3461A. The second branch portion 3431B includes a second extension portion 3461B and a trapezoidal structure 3441B. The trapezoidal structure 3441B is connected between the second trunk portion 3421 and the corresponding second extension portion 3461B.

The second branch portion 3432A and the second branch portion 3432B respectively extend from the second trunk portion 3422, and the second branch portion 3432A and the second branch portion 3432B are correspondingly connected to both sides of the second trunk portion 3422. The second branch portion 3432A includes a second extension portion 3462A and a trapezoidal structure 3442A. The trapezoidal structure 3442A is coupled between the second trunk portion 3422 and the corresponding second extension portion 3462A. The second branch portion 3432B includes a second extension portion 3462B and a trapezoidal structure 3442B. The trapezoidal structure 3442B is coupled between the second trunk portion 3422 and the corresponding second extension portion 3462B.

The second branch portion 3433A and the second branch portion 3433B extend from the second trunk portion 3423, and the second branch portion 3433A and the second branch portion 3433B are correspondingly connected to both sides of the second trunk portion 3423. The second branch portion 3433A includes a second extension portion 3463A and a trapezoidal structure 3443A. The trapezoidal structure 3443A is connected between the second trunk portion 3423 and the corresponding second extension portion 3463A. The second branch portion 3433B includes a second extension portion 3463B and a trapezoidal structure 3443B. The trapezoidal structure 3443B is connected between the second trunk portion 3423 and the corresponding second extension portion 3463B.

In an embodiment, the second branch portion 3431B and the second branch portion 3432A are connected between the second trunk portion 3421 and the second trunk portion 3422, and the second branch portion 3432B and the second branch portion 3433A are connected to the second main portion. Between the cadre 3422 and the second trunk 3423. The second branch portion 3431A, the second branch portion 3431B, the second branch portion 3432A, the second branch portion 3432B, the second branch portion 3433A, and the second branch portion 3433B are alternately arranged with the first branch portion 353 along the extending direction D1.

4 is a top plan view of a pixel structure 400 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 4 follows the same reference numerals and parts of the embodiment of FIG. 2, wherein the same or similar reference numerals are used to designate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The difference between the pixel structure 400 of FIG. 4 and the pixel structure 200 of FIG. 2 is that the first electrode 450 and the second electrode 440 of the pixel structure 400 are different from the first electrode 250 and the second electrode 240 of the pixel structure 200. shape.

The first electrode 450 includes a first trunk portion 452A, a first trunk portion 452B, and a plurality of first branch portions 453. The first trunk portion 452A and the first trunk portion 452B are substantially parallel to the extending direction D1 of the data line 130.

The first branch portion 453 of the first electrode 450 is located between the first trunk portion 452A and the first trunk portion 452B. Each of the first branch portions 453 includes a first extension 456, a geometry 454A, a geometry 454B, a protrusion 458A, a protrusion 458B, a protrusion 458C, a protrusion 458D, a protrusion 458E, and a protrusion 458F. Geometry 454A and geometry 454B are located between first stem portion 452A and first stem portion 452B, first extension portion 456 is located between geometry 454A and geometry 454B, and first extension portion 456 is coupled to the corresponding geometry Between 454A and geometry 454B. The width of the geometric structure 454A and the geometric structure 454B in the extending direction D1 is greater than the width of the first extending portion 456 in the extending direction D1. Specifically, a portion of the geometric structure 454A away from the first extending portion 456 is in the extending direction D1. The width of the upper portion and the portion of the geometry 454B remote from the first extension 456 are greater in the direction of extension D1 than the width of the first extension 456 in the direction of extension D1. The protrusion 458A and the protrusion 458B are located between the second trunk portion 4424 of the second electrode 440 and the second trunk portion 4423. The protrusion 458C and the protrusion 458D are located at the second trunk portion 4423 of the second electrode 440 and the second trunk portion. Between 4422, and the protrusion 458E and the protrusion 458F are located between the second trunk portion 4422 of the second electrode 440 and the second trunk portion 4421.

The second electrode 440 is separated from the first electrode 450. The second electrode 440 includes a second trunk portion 4421, a second trunk portion 4422, a second trunk portion 4423, a second trunk portion 4424, a second branch portion 4431A, a second branch portion 4431B, a second branch portion 4432A, and a second branch. The branch portion 4432B, the second branch portion 4433A, the second branch portion 4433B, the second branch portion 4444A, and the second branch portion 4434B. The second trunk portion 4421, the second trunk portion 4422, the second trunk portion 4423, and the second trunk portion 4424 are located between the first trunk portion 452A and the first trunk portion 452B and are substantially parallel to the extending direction D1.

The second branch portion 4431A and the second branch portion 4431B extend from the second trunk portion 4421, and the second branch portion 4431A and the second branch portion 4431B are correspondingly connected to both sides of the second trunk portion 4421. The second branch portion 4431A includes a second extension portion 4461A and a trapezoidal structure 4441A. The trapezoidal structure 4441A is connected between the second trunk portion 4421 and the corresponding second extension portion 4461A. The second branch portion 4431B includes a second extension portion 4461B and a trapezoidal structure 4441B. The trapezoidal structure 4441B is connected between the second trunk portion 4421 and the corresponding second extension portion 4461B.

The second branch portion 4432A and the second branch portion 4432B respectively extend from the second trunk portion 4422, and the second branch portion 4432A and the second branch portion 4432B are correspondingly connected to both sides of the second trunk portion 4422. The second branch portion 4432A includes a second extension portion 4462A and a trapezoidal structure 4442A. The trapezoidal structure 4442A is coupled between the second trunk portion 4422 and the corresponding second extension portion 4462A. The second branch portion 4432B includes a second extension portion 4462B and a trapezoidal structure 4442B. The trapezoidal structure 4442B is connected between the second trunk portion 4422 and the corresponding second extension portion 4462B.

The second branch portion 4433A and the second branch portion 4433B respectively extend from the second trunk portion 4423, and the second branch portion 4433A and the second branch portion 4433B are correspondingly connected to both sides of the second trunk portion 4423. The second branch portion 4433A includes a second extension portion 4463A and a ladder structure 4443A. The trapezoidal structure 4443A is connected between the second trunk portion 4423 and the corresponding second extension portion 4463A. The second branch portion 4433B includes a second extension portion 4463B and a trapezoidal structure 4443B. The trapezoidal structure 4443B is connected between the second trunk portion 4423 and the corresponding second extension portion 4463B.

The second branch portion 4444A and the second branch portion 4444B respectively extend from the second trunk portion 4424, and the second branch portion 4444A and the second branch portion 4444B are correspondingly connected to both sides of the second trunk portion 4424. The second branch portion 4434A includes a second extension portion 4464A and a trapezoidal structure 4444A. The trapezoidal structure 4444A is coupled between the second stem portion 4424 and the corresponding second extension portion 4464A. The second branch portion 4434B includes a second extension portion 4464B and a trapezoidal structure 4444B. The trapezoidal structure 4444B is coupled between the second stem portion 4424 and the corresponding second extension portion 4464B.

In one embodiment, the second branch portion 4431B and the second branch portion 4432A are connected between the second trunk portion 4421 and the second trunk portion 4422, and the second branch portion 4432B and the second branch portion 4433A are connected to the second trunk portion. Between the 4422 and the second trunk portion 4423, the second branch portion 4433B and the second branch portion 4434A are connected between the second trunk portion 4423 and the second trunk portion 4424. The second branch portion 4431A, the second branch portion 4431B, the second branch portion 4432A, the second branch portion 4432B, the second branch portion 4433A, the second branch portion 4433B, the second branch portion 4444A, and the second branch portion 4434B respectively A branch portion 453 is staggered along the extending direction D1.

In an embodiment, the first branch portion of the first electrode includes a periodic protrusion, and the first branch portion of the first electrode and the second branch portion of the second electrode cause a horizontal distance change due to the protrusion, resulting in the first The electric field formed by the one electrode and the second electrode can divide the liquid crystal layer in the display into four liquid crystal actuating regions having horizontal electric fields in different directions, and can drive and return the liquid crystal molecules of the adjacent liquid crystal operating regions to substantially The adjustment is in the same direction, and the reaction time of the liquid crystal molecules is greatly shortened.

FIG. 5 is a top plan view of a pixel structure 500 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 5 follows the same reference numerals and parts of the embodiment of FIG. 4, wherein the same or similar reference numerals are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The pixel structure 500 of FIG. 5 differs from the pixel structure 400 of FIG. 4 in that the geometry and protrusion of the first electrode 550 of the pixel structure 500 and the geometry and protrusion of the first electrode 450 of the pixel structure 400 Has a different shape.

In the present embodiment, the first electrode 550 includes a first branch portion 553, and the geometry 554A of the first branch portion 553 and the geometry 554B are semi-circular. The geometry 554A and the geometry 554B are located between the first stem portion 552A and the first stem portion 552B, the first extension portion 556 is located between the geometry 554A and the geometry 554B, and the first extension portion 556 is coupled to the corresponding geometry Between 554A and geometry 554B.

The shape of the protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F of the first electrode 550 include a semicircular shape, and the protrusion 558A, the protrusion 558B, the protrusion 558C, and the protrusion The bottom of the 558D, the protrusion 558E, and the protrusion 558F are coupled to the first extension 556. The protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F are respectively oriented toward the other second extension portion 556 adjacent thereto. In an embodiment of the invention, the protrusion 558A, the protrusion 558C and the protrusion 558E are disposed on one side of the second extension portion 556, and the protrusion 558B, the protrusion 558D and the protrusion 558F are disposed on the second extension portion 556. One side, and the protrusion 558A, the protrusion 558C, and the protrusion 558E are aligned with the apexes of the protrusion 558B, the protrusion 558D, and the protrusion 558F, respectively, for example, the apex of the protrusion 558A is connected with the apex of the protrusion 558B. The line may be substantially perpendicular to the extending direction of the second extending portion 556, the line connecting the apex of the protrusion 558C and the apex of the protrusion 558D may be substantially perpendicular to the extending direction of the second extending portion 556, the apex and convex of the protrusion 558E. The line connecting the vertices of 558F may be substantially perpendicular to the direction in which the second extension 556 extends.

In the present embodiment, the shapes of the geometric structure 554A, the geometric structure 554B, the protrusion 558A, the protrusion 558B, the protrusion 558C, the protrusion 558D, the protrusion 558E, and the protrusion 558F include a semicircle, but the present invention is not limited thereto. . In other embodiments, the geometry and the convex shape may also include a semi-elliptical shape.

FIG. 6 is a top plan view of a pixel structure 600 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 6 follows the component numbers and parts of the embodiment of FIG. 4, wherein the same or similar elements are denoted by the same or similar reference numerals, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The pixel structure 600 of FIG. 6 differs from the pixel structure 400 of FIG. 4 in that the first electrode 650 of the pixel structure 600 has a different shape from the first electrode 450 of the pixel structure 400.

In an embodiment of the invention, the first electrode 650 includes a first branch portion 653, and the geometric structure 654A of the first branch portion 653 and the geometric structure 654B each include two corresponding curved surfaces, and the concave surfaces of the two corresponding curved surfaces They are respectively facing the outer side of the protrusion. For example, the geometry 654A includes corresponding sidewalls SW5 and sidewalls SW6, the sidewalls SW5 and sidewalls SW6 being two corresponding curved surfaces, and the sidewalls SW5 and the sidewalls SW6 have a concave surface that faces the outside of the geometry 654A. Geometry 654A and geometry 654B are located between first stem portion 652A and first stem portion 652B, first extension portion 656 is between geometry 654A and geometry 654B, and first extension portion 656 is coupled to the corresponding geometry Between 654A and geometry 654B.

The shape of the protrusion 658A, the protrusion 658B, the protrusion 658C, the protrusion 658D, the protrusion 658E, and the protrusion 658F of the first electrode 650 include a nail shape, and the protrusion 658A, the protrusion 658B, the protrusion 658C, and the protrusion 658D The bottom of the protrusion 658E and the protrusion 658F are connected to the first extension 656. The protrusion 658A, the protrusion 658B, the protrusion 658C, the protrusion 658D, the protrusion 658E, and the protrusion 658F are respectively oriented toward the other second extension portion 656 adjacent thereto. In this embodiment, the protrusions each include two corresponding curved surfaces, and the concave surfaces of the two corresponding curved surfaces respectively face the outer side of the protrusion. For example, the protrusion 658A includes a corresponding side wall SW7 and side walls SW8, and the side wall SW7 and the side wall SW8 are two corresponding curved surfaces, and the concave surfaces of the side wall SW7 and the side wall SW8 face the outer side of the protrusion 658A. In an embodiment of the invention, the protrusion 658A, the protrusion 658C, and the protrusion 658E are respectively disposed on the two sides of the second extension portion 656 corresponding to the protrusion 658B, the protrusion 658D, and the protrusion 658F, and the protrusion 658A, The protrusions 658C and the protrusions 658E are aligned with the apexes of the protrusions 658B, 658D, and 658F, respectively.

FIG. 7 is a top plan view of a pixel structure 700 in accordance with an embodiment of the present invention. It is to be noted that the embodiment of FIG. 7 follows the same reference numerals and parts of the embodiment of FIG. 2, wherein the same or similar reference numerals are used to designate the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

The pixel structure 700 of FIG. 7 differs from the pixel structure 200 of FIG. 2 in that the first electrode 750 of the pixel structure 700 has a different shape from the first electrode 250 of the pixel structure 200.

The first electrode 750 of the pixel structure 700 includes a first stem portion 752A, a first stem portion 752B, a first stem portion 752C, a first branch portion 753A, and a first branch portion 753B. The first branch portion 753A is located between the first trunk portion 752A and the first trunk portion 752B, and the first branch portion 753B is located between the first trunk portion 752B and the first trunk portion 752C. In this embodiment, the first trunk portion 752B is located between the second trunk portion 2421 of the second electrode 240 and the second trunk portion 2422, and the second trunk portion 2421 is located between the first trunk portion 752A and the first trunk portion 752B. And the second trunk portion 2422 is located between the first trunk portion 752B and the first trunk portion 752C. In one embodiment, the first trunk portion 752A, the first trunk portion 752B, the first trunk portion 752C, the second trunk portion 2421, and the second trunk portion 2422 are staggered along the extending direction D2 of the scan line.

The first branch portion 753A of the first electrode 750 includes a first extension 756A, a geometry 754A, and a geometry 754B. Geometry 754A and geometry 754B are located between first stem portion 752A and first stem portion 752B, and first extension portion 756A is coupled between corresponding geometry 754A and geometry 754B. The width of the geometric structure 754A and the geometric structure 754B in the extending direction D1 is greater than the width of the first extending portion 756A in the extending direction D1. Specifically, a portion of the geometric structure 754A away from the first extending portion 756A is in the extending direction D1. The width above and a portion of the geometry 754B remote from the first extension 756A are greater in the direction of extension D1 than the width of the first extension 756A in the direction of extension D1. The first branch portion 753B includes a first extension 756B, a geometry 754B', and a geometry 754C. Geometry 754B' and geometry 754C are located between first stem portion 752B and first stem portion 752C, and first extension portion 756B is coupled between corresponding geometry 754B' and geometry 754C. The width of the geometry 754B' and the geometry 754C in the direction of extension D1 is greater than the width of the first extension 756 in the direction of extension D1, in particular, a portion of the geometry 754B' remote from the first extension 756B is extended The width in the direction D1 and the width of a portion of the geometry 754C remote from the first extension 756B in the extending direction D1 are greater than the width of the first extending portion 756B in the extending direction D1. The first branch portion 753A is connected to both sides of the first trunk portion 752B corresponding to the first branch portion 753B.

FIG. 8A is a top plan view of a pixel structure 800 in accordance with an embodiment of the present invention. FIG. 8B is a top plan view of the second electrode 840 of FIG. 8A. Figure 8C is a top plan view of the first electrode 850 of Figure 8A. 8A includes two pixel structures 800, FIG. 8B includes two second electrodes 840, and FIG. 8C includes two first electrodes 850, but does not represent that the present invention must simultaneously form two pixel structures, two The first electrode or the two second electrodes. The pixel structure, the first electrode or the second electrode of the present invention may be formed one or three times at a time as needed.

The switching element TFT2 includes a semiconductor layer 810, a gate 822, a drain 834, and a source 832. The method of forming the switching element TFT2 includes, for example, forming a semiconductor layer 810 on a substrate. After the semiconductor layer 810 is formed, a gate insulating layer and a gate 822 and a scan line 820 are sequentially formed on the semiconductor layer 810, and the gate 822 is electrically connected to the scan line 820. An insulating layer covering the gate 822 is formed. An opening O4 and an opening O5 are formed in the insulating layer. Next, a drain 834 and a source 832 electrically connected to the data line 830 are formed. The drain 834 is electrically connected to the semiconductor layer 810 through the opening O5, and the source 832 is electrically connected to the semiconductor layer 810 through the opening O4. connection. In the present embodiment, the shape of the semiconductor layer 810 of the switching element TFT2 is U-shaped, but the present invention is not limited thereto. In other embodiments, the shape of the semiconductor layer of the switching element is L-shaped or other geometric shape. In the present embodiment, the switching element TFT2 is a thin film transistor of a top gate structure, but the present invention is not limited thereto. In other embodiments, the switching element TFT2 may also be a thin film transistor of a bottom gate structure.

Referring to FIG. 8A and FIG. 8C simultaneously, the first electrode 850 includes a first trunk portion 852A, a first trunk portion 852B, and a plurality of first branch portions 853. The first trunk portion 852A and the first trunk portion 852B are substantially parallel to the extending direction D3 of the data line 830. In the present embodiment, the first trunk portion 852A and the first trunk portion 852B may completely overlap with the partial rows of data lines 830, respectively, but the invention is not limited thereto. In other embodiments, a portion of the first stem portion 852A overlaps a portion of the data line 830, and a portion of the first stem portion 852B overlaps with another portion of the data line 830. In other embodiments, the first trunk portion 852A and the first trunk portion 852B are adjacent to each other and do not overlap the data line 830 at all.

The first branch portion 853 of the first electrode 850 is located between the first trunk portion 852A and the first trunk portion 852B. Each of the first branches 853 includes a first extension 856, a geometry 854A, and a geometry 854B. The geometry 854A and the geometry 854B are located between the first stem portion 852A and the first stem portion 852B, and the first extension portion 856 is located between the geometry 854A and the geometry 854B, and the first extension portion 856 is coupled to the corresponding geometry Between structure 854A and geometry 854B. The width of the geometry 854A and the geometry 854B in the direction of extension D3 of the data line 830 is greater than the width of the first extension 856 in the direction of extension D3, in particular, a portion of the geometry 854A that is remote from the first extension 856. The width in the direction of extension D3 and the width of a portion of the geometry 854B remote from the first extension 856 in the direction of extension D3 are greater than the width of the first extension 856 in the direction of extension D3. In one embodiment, the geometry 854A and the geometry 854B are trapezoidal in shape, and the widest bottom of the geometry 854A and the geometry 854B are coupled to the first stem portion 852A and the first stem portion 852B, respectively, and the geometry 854A The acute angle between the side wall SW9 and the side wall SW10 of the geometric structure 854B and the extending direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, although the invention is not limited thereto. In other embodiments, the geometry may be other geometric shapes having a greater width in the direction of extension D3 than the first extension 856. In an embodiment, the geometry 854A of the first electrode 850 and the geometry 854B have similar or identical shapes to the trapezoidal structure 844B of the second electrode 840 and the trapezoidal structure 844A, respectively. In an embodiment, the first extension 856 has a rectangular shape and the first extension 856 has a line width of 0.5 micrometers to 5 micrometers.

In this embodiment, the first electrode 850 further includes a connecting portion 851A. The connecting portion 851A connects the first trunk portion 852A and the first trunk portion 852B. The area of the connecting portion 851A is greater than the area of the first branch portion 853. The position of the portion 851A is exemplified on one side of the plurality of first branch portions 853, but the present invention is not limited thereto. In other embodiments, the first stem portion 852A of the first electrode 850 and the first stem portion 852B are only connected by the first branch portion 853. In the present embodiment, the source 832 and the drain 834 of the switching element TFT2 completely overlap the first electrode 850, that is, completely overlap with the connecting portion 851A, but the present invention is not limited thereto. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may only partially overlap the first electrode 850. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may not overlap at all with the first electrode 850.

The second electrode 840 in the pixel structure 800 and the switching element TFT2 are separated by an insulating layer, and the second electrode 840 and the drain 834 of the switching element TFT2 are electrically connected through the opening O6 in the insulating layer.

The second electrode 840 is separated from the first electrode 850. Referring to FIG. 8A and FIG. 8B simultaneously, the second electrode 840 includes a second trunk portion 842, a second branch portion 843A, and a second branch portion 843B. The second trunk portion 842, the second branch portion 843A, and the second branch portion 843B are located between the first trunk portion 852A of the first electrode 850 and the first trunk portion 852B, and the second trunk portion 842 is substantially parallel to the extending direction D3. . The second branch portion 843A and the second branch portion 843B respectively extend from the second trunk portion 842, and the second branch portion 843A and the second branch portion 843B are correspondingly connected to both sides of the second trunk portion 842. The second branch portion 843A includes a second extension portion 846A and a trapezoidal structure 844A. The trapezoidal structure 844A is coupled between the second stem portion 842 and the corresponding second extension portion 846A. The second branch portion 843B includes a second extension portion 846B and a trapezoidal structure 844B. The trapezoidal structure 844B is coupled between the second stem portion 842 and the corresponding second extension portion 846B. The second branch portion 843A and the second branch portion 843B are alternately arranged with the first branch portion 853 along the extending direction D3.

In the present embodiment, the shape of the second extension portion 846A and the second extension portion 846B is trapezoidal, but the invention is not limited thereto. In other embodiments, the second extension 846A and the second extension 846B are rectangular in shape. In an embodiment, an acute angle between the sidewall SW11 of the second extension portion 846A and the sidewall SW12 of the second extension portion 846B and the extending direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, and can be borrowed The size of the angle is adjusted to further shorten the reaction time of the liquid crystal.

FIG. 9A is a top plan view of a pixel structure 900 in accordance with an embodiment of the present invention. Figure 9B is a top plan view of the first electrode 950 of Figure 9A. FIG. 9A includes two pixel structures 900, and FIG. 9B includes two first electrodes 950, but does not represent that the present invention must simultaneously form two pixel structures, two first electrodes, or two second electrodes. The pixel structure, the first electrode or the second electrode of the present invention may be formed one or three times at a time as needed.

It is to be noted that the embodiment of FIG. 9A follows the same reference numerals and parts of the embodiment of FIG. 8A, wherein the same or similar elements are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated. The pixel structure 900 of FIG. 9A differs from the pixel structure 800 of FIG. 8A in that the first electrode 950 of the pixel structure 900 has a different shape from the first electrode 850 of the pixel structure 800.

The first electrode 950 includes a first stem portion 952A, a first stem portion 952B, and a plurality of first branch portions 953. The first trunk portion 952A and the first trunk portion 952B are substantially parallel to the extending direction D3 of the data line 830. In the present embodiment, the first trunk portion 952A and the first trunk portion 952B may completely overlap with the partial rows of data lines 830, respectively, but the invention is not limited thereto. In other embodiments, a portion of the first stem portion 952A overlaps a portion of the data line 830, and a portion of the first stem portion 952B overlaps with another portion of the data line 830. In other embodiments, the first stem portion 952A and the first stem portion 952B are adjacent to each other and do not overlap the data line 830 at all.

The first branch portion 953 of the first electrode 950 is located between the first trunk portion 952A and the first stem portion 952B. Each of the first branch portions 953 includes a first extension 956A, a first extension 956B, a geometry 954A, and a geometry 954B. Geometry 954A and geometry 954B are located between first trunk portion 952A and first stem portion 952B. The first extension 956A and the first extension 956B are located between the geometric structure 954A and the geometric structure 954B, and the first extension 956A and the first extension 956B respectively connect the corresponding geometry 954A and the geometry 954B, and the first extension Both the 956A and the first extension 956B are separated at least at the second stem 842 of the second electrode 840. The width of the geometric structure 954A and the geometric structure 954B in the extending direction D3 is greater than the width of the first extending portion 956 in the extending direction D3. Specifically, a portion of the geometric structure 954A away from the first extending portion 956A is in the extending direction D3. The width of the upper extension portion 956A is greater than the width of the first extension portion 956B in the extension direction D3, and the width of the portion of the geometry 954B away from the first extension portion 956B in the extension direction D3 is greater than the extension of the first extension portion 956B in the extension direction D3. width. In one embodiment, the geometry 954A and the geometry 954B are trapezoidal in shape, and the widest bottoms of the geometry 954A and the geometry 954B are coupled to the first stem portion 952A and the first stem portion 952B, respectively, and the geometry 954A The acute angle between the side wall SW13 and the side wall SW14 of the geometric structure 954B and the extending direction D3 of the data line 830 is greater than or equal to 30 degrees and less than 90 degrees, although the invention is not limited thereto. In other embodiments, the geometry may be other widths in the direction of extension D3 that are greater than the first extension 956A and the first extension 956B.

In the present embodiment, the first electrode 950 further includes a connecting portion 951A. The connecting portion 951A connects the first trunk portion 952A and the first trunk portion 952B. The area of the connecting portion 951A is greater than the area of the first branch portion 953. The invention is not limited thereto. In the present embodiment, the source 832 and the drain 834 of the switching element TFT2 completely overlap the first electrode 950, that is, completely overlap with the connecting portion 951A, but the present invention is not limited thereto. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may only partially overlap the first electrode 950. In other embodiments, the source 832 and the drain 834 of the switching element TFT2 may not overlap at all with the first electrode 950.

Fig. 9C is a schematic cross-sectional view taken along line AA' of Fig. 9A. In this embodiment, a gate insulating layer 812 and a gate insulating layer 814 are interposed between the gate 822 and the semiconductor layer 810, and an insulating layer 824 and an insulating layer 826 are disposed between the gate 822 and the drain 834, and the opening O5 is located. Among the gate insulating layer 812, the gate insulating layer 814, the insulating layer 824, and the insulating layer 826, the drain 834 and the semiconductor layer 810 are electrically connected by the opening O5. An insulating layer 836 is interposed between the drain 834 and the second electrode 840. The opening O6 is located in the insulating layer 836, and the drain 834 and the second electrode 840 are electrically connected by the opening O6. The first electrode 950 and the second electrode 840 are separated by an insulating layer 845, and the first electrode 950 is separated from the second electrode 840. In other embodiments, the foregoing insulating layer or gate insulating layer may also increase or decrease the number of layers according to actual needs.

FIG. 10A is a top plan view of a pixel structure 1000 in accordance with an embodiment of the present invention. Fig. 10B is a schematic cross-sectional view taken along line BB' of Fig. 10A. Figure 10A includes two pixel structures 1000, but does not represent that the present invention must simultaneously form two pixel structures. The pixel structure of the present invention can also be formed one or three times at a time as needed.

It is to be noted that the embodiment of FIG. 10A follows the same reference numerals and parts of the embodiment of FIG. 9A, wherein the same or similar elements are denoted by the same or similar reference numerals, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated. The difference between the pixel structure 1000 of FIG. 10A and the pixel structure 900 of FIG. 9A is that the second electrode 840 of the pixel structure 900 and the drain 834 of the switching element TFT2 are not simultaneously formed, but the second electrode of the pixel structure 1000 1040 and the drain 1034 of the switching element TFT3 are formed at the same time.

Referring to FIG. 10B, in the embodiment, the switching element TFT3 includes a semiconductor layer 810, a gate 822, a source 832, and a drain 1034. In one embodiment, the second electrode 1040 and the drain 1034 belong to the same film layer, and the second electrode 1040 and the drain 1034 are simultaneously formed. Therefore, the time required for the process can be shortened and the thickness of the pixel structure can be reduced. In an embodiment of the invention, the second electrode, the data line, and the drain are all of the same film layer.

In summary, the first electrode in the pixel structure of the present invention includes at least two first trunk portions and a plurality of first branch portions, and the second electrode includes at least one second trunk portion and at least two second branch portions. And the first branch portion and the second branch portion are staggered along the extending direction of the data line. Therefore, the electric field formed by the first electrode and the second electrode enables the liquid crystal to have a shorter reaction time, thereby improving the liquid crystal efficiency. The first branch portion of the first electrode includes a geometric structure, and the second branch portion of the second electrode includes a trapezoidal structure.

FIG. 11A is a top plan view of a pixel structure 1100 in accordance with an embodiment of the present invention. Figure 11B is a top plan view of the second electrode 1140 of Figure 11A. Figure 11C is a top plan view of the first electrode 1150 of Figure 11A. 11A includes two pixel structures 1100, FIG. 11B includes two second electrodes 1140, and FIG. 11C includes two first electrodes 1150, but does not represent that the present invention must simultaneously form two pixel structures, two The first electrode or the two second electrodes. The pixel structure, the first electrode or the second electrode of the present invention may be formed one or three times at a time as needed.

It is to be noted that the embodiment of FIG. 11A follows the same reference numerals and parts of the embodiment of FIG. 8A, wherein the same or similar elements are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

Referring to FIGS. 11A and 11C , the first electrode 1150 of the pixel structure 1100 includes a first trunk portion 1152 , a first branch portion 1153A , and a first branch portion 1153B . The first trunk portion 1152 is substantially parallel to the extending direction D3. The first branch portion 1153A and the first branch portion 1153B respectively extend from the first trunk portion 1152, and the first branch portion 1153A and the first branch portion 1153B are correspondingly connected to both sides of the first trunk portion 1152. The first branch portion 1153A includes a first extension 1156A and a first ladder structure 1154A. The first trapezoidal structure 1154A is coupled between the first stem portion 1152 and the corresponding first extension portion 1156A. The first branch portion 1153B includes a first extension portion 1156B and a first ladder structure 1154B. The first trapezoidal structure 1154B is coupled between the first trunk portion 1152 and the corresponding first extension portion 1156B.

Referring to FIGS. 11A and 11B , the second electrode 1140 includes a second trunk portion 1142 , a second branch portion 1143A , and a second branch portion 1143B . The second trunk portion 1142 is substantially parallel to the extending direction D3. The second trunk portion 1142 overlaps with the first trunk portion 1152. The second branch portion 1143A and the second branch portion 1143B respectively extend from the second trunk portion 1142, and the second branch portion 1143A and the second branch portion 1143B are correspondingly connected to both sides of the second trunk portion 1142. The second branch portion 1143A includes a second extension portion 1146A and a second ladder structure 1144A. The second trapezoidal structure 1144A is coupled between the second stem portion 1142 and the corresponding second extension portion 1146A. The second branch portion 1143B includes a second extension portion 1146B and a second trapezoidal structure 1144B. The second trapezoidal structure 1144B is coupled between the second stem portion 1142 and the corresponding second extension portion 1146B. The first branch portion 1153A and the first branch portion 1153B are alternately arranged with the second branch portion 1143A and the second branch portion 1143B in the extending direction D3 of the data line. In an embodiment of the invention, the first electrode and the second electrode form a tree structure or a fishbone structure, as shown in FIG. 11A.

In the present embodiment, the first electrode 1150 is a common electrode, and the second electrode 1140 is a pixel electrode, but the invention is not limited thereto. In other embodiments, the first electrode is a pixel electrode and the second electrode is a common electrode. In the present embodiment, the shape of the first extension portion 1156A and the first extension portion 1156B is trapezoidal, but the present invention is not limited thereto. In other embodiments, the first extension 1156A and the first extension 1156B are rectangular in shape. In an embodiment, an acute angle formed between the sidewall SW15 of the first extending portion 1156A and the extending direction D3 of the data line is greater than or equal to 30 degrees and less than 90 degrees, and the sidewall SW16 of the first extending portion 1156B and the data line The acute angle formed between the extending directions D3 is greater than or equal to 30 degrees and less than 90 degrees. In an embodiment, an acute angle between the sidewall SW17 of the first ladder structure 1154A and the extending direction D3 of the data line is 30 degrees to 60 degrees, between the sidewall SW18 of the first ladder structure 1154B and the extending direction D3 of the data line. The acute angle is between 30 and 60 degrees. In the present embodiment, the first branch portions 1153A, 1153B of the first electrode 1150 have the same shape as the second branch portions 1143A, 1143B of the second electrode, respectively, but the present invention is not limited thereto. In other embodiments, the first branch portions 1153A, 1153B of the first electrode 1150 have different shapes from the second branch portions 1143A, 1143B of the second electrode, respectively.

In summary, the common electrode in the pixel structure includes a first trunk portion and at least two first branch portions, and the pixel electrode includes a second trunk portion and at least two second branch portions, and the first branch portion and the first branch portion The two branch portions are staggered along the extending direction of the data line. Therefore, the electric field formed by the common electrode and the pixel electrode enables the liquid crystal to have a short reaction time, thereby improving the liquid crystal efficiency.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100‧‧‧ pixel structure
110, 810‧‧‧ semiconductor layer
120, 820‧‧‧ scan lines
122, 822‧‧ ‧ gate
130, 830‧‧‧ data line
132, 832‧‧‧ source
134, 834, 1034‧‧ ‧ bungee
140, 240, 340, 440, 840, 1040, 1140‧‧‧ second electrode
142, 2421, 2422, 3421, 3422, 3423, 4421, 4422, 4423, 4424, 842, 1142 ‧ ‧ second main cadre
143A, 143B, 2431A, 2431B, 2432A, 2432B, 3431A, 3431B, 3432A, 3432B, 3433A, 3433B, 4431A, 4431B, 4432A, 4432B, 4433A, 4433B, 4434A, 4434B, 843A, 843B, 1143A, 1143B‧‧ Second branch
144A, 144B, 2441A, 2441B, 2442A, 2442B, 3441A, 3441B, 3442A, 3442B, 3443A, 3443B, 4441A, 4441B, 4442A, 4442B, 4443A, 4443B, 4444A, 4444B, 844A, 844B, 1144A, 1144B‧‧ Trapezoidal structure
146A, 146B, 2461A, 2461B, 2462A, 2462B, 3461A, 3461B, 3462A, 3462B, 3463A, 3463B, 4461A, 4461B, 4462A, 4462B, 4463A, 4463B, 4464A, 4464B, 846A, 846B, 1146A, 1146B‧‧ Second extension
150, 250, 350, 450, 550, 650, 750, 850, 950, 1150‧‧‧ first electrode
151A, 151B, 851A, 951A‧‧‧ Connections
152A, 152B, 252A, 252B, 352A, 352B, 452A, 452B, 552A, 552B, 652A, 652B, 752A, 752B, 752C, 852A, 852B, 952A, 952B, 1152‧‧‧ first backbone
First branch of 153, 253, 353, 453, 553, 653, 753A, 753B, 753C, 853, 953, 1153A, 1153B‧‧
154A, 154B, 254A, 254B, 354A, 354B, 454A, 454B, 554A, 554B, 654A, 654B, 754A, 754B, 754B', 754C, 854A, 854B, 954A, 954B, 1154A, 1154B‧‧‧ Geometry
156, 256, 356, 456, 556, 656, 756A, 756B, 856, 956A, 956B, 1156A, 1156B‧‧‧ first extension
258A, 258B, 358A, 358B, 358C, 358D, 458A, 458B, 458C, 458D, 458E, 458F, 558A, 558B, 558C, 558D, 558E, 558F, 658A, 658B, 658C, 658D, 658E, 658F‧‧ Bulge
824, 826, 836, 845‧‧ ‧ insulation
812, 814‧‧ ‧ brake insulation
D1, D2, D3‧‧‧ extension direction
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18‧‧‧ sidewall
O1, O2, O3, O4, O5, O6‧‧‧ openings
TFT1, TFT2, TFT3‧‧‧ switching elements

1 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. 2 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. 3 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. 4 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Figure 5 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. 6 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. 7 is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Figure 8A is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Figure 8B is a top plan view of the second electrode of Figure 8A. Figure 8C is a top plan view of the first electrode of Figure 8A. 9A is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Figure 9B is a top plan view of the first electrode of Figure 9A. Fig. 9C is a schematic cross-sectional view taken along line AA' of Fig. 9A. Figure 10A is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Fig. 10B is a schematic cross-sectional view taken along line BB' of Fig. 10A. 11A is a top plan view of a pixel structure in accordance with an embodiment of the present invention. Figure 11B is a top plan view of the second electrode of Figure 11A. Figure 11C is a top plan view of the first electrode of Figure 11A.

100‧‧‧ pixel structure

110‧‧‧Semiconductor layer

120‧‧‧ scan line

122‧‧‧ gate

130‧‧‧Information line

132‧‧‧ source

134‧‧‧汲polar

140‧‧‧second electrode

142‧‧‧Second Main Department

143A, 143B‧‧‧Second branch

144A, 144B‧‧‧ ladder structure

146A, 146B‧‧‧ second extension

150‧‧‧first electrode

151A, 151B‧‧‧ Connections

152A, 152B‧‧‧ First Main Department

153‧‧‧ First Branch

154A, 154B‧‧‧ Geometry

156‧‧‧First Extension

D1‧‧‧ extending direction

SW1, SW2, SW3, SW4‧‧‧ sidewall

O1, O2, O3‧‧‧ openings

TFT1‧‧‧ switching components

Claims (17)

A pixel structure includes: a scan line and a data line; a switching element electrically connected to the scan line and the data line; a first electrode comprising: at least two first stems substantially parallel to One of the data lines extending direction; and a plurality of first branch portions, each of the first branch portions comprising: at least one first extension portion; and at least two geometric structures located at the two first main portions Between the cadres, and the first extension is located between the corresponding two geometric structures, wherein the width of the two geometric structures in the extending direction is greater than the width of the first extending portion in the extending direction; The second electrode is separated from the first electrode, wherein the first electrode and the second electrode are electrically connected to the switching element, and the second electrode comprises: at least one second trunk portion located at the two Between the first main portions of the strips, and substantially parallel to the extending direction of the data line; and at least two second branch portions extending from the second main portion, wherein the at least two second branch portions respectively correspond to Connecting to both sides of the second trunk portion, and at least one of the at least two second branch portions includes: at least one second extension portion; and at least one ladder structure coupled to the second trunk portion and corresponding Between the second extensions, the first branch portions and the second branch portions are staggered along the extending direction of the data line. The pixel structure of claim 1, wherein the first electrode is electrically connected to a common voltage, and the second electrode is electrically connected to the switching element. The pixel structure of claim 1, wherein the shape of the at least two geometric structures comprises a trapezoid. The pixel structure of claim 1, wherein: each of the first branch portions of the first electrode comprises: at least two first extensions, the at least two first extensions Do not connect to the corresponding two of the geometries, and the at least two first extensions are separated at the second stem. The pixel structure of claim 1, wherein the second branch portions of the second electrode are located between the two first trunk portions. The pixel structure of claim 1, wherein the second branch portions of the second electrode extend below the two first stem portions of the first electrode, respectively. The pixel structure of claim 6, wherein: the first electrode comprises: at least three first trunk portions, and the first branch portions are respectively located between the corresponding two first trunk portions The second electrode includes: at least two second trunk portions respectively located between the corresponding two first trunk portions; and at least four second branch portions respectively located at each of the two second masters Two sides of the cadre, at least two of the second branch portions are located between the two second trunk portions, and are connected to each other between the corresponding two second trunk portions. The pixel structure of claim 1, wherein: the second electrode comprises at least two second trunk portions; and each of the first extension portions of the first electrode is connected to the corresponding at least two Between the geometries, and at least one of the first extensions includes a plurality of protrusions between the two second stem portions of the second electrode. The pixel structure of claim 8, wherein the shape of the protrusions of the first electrode comprises a triangle, a semicircle or a spike. The pixel structure of claim 8, wherein the protrusions of the first electrode comprise a triangle, and the protrusions have a top angle of 60 degrees to 150 degrees, and the protrusions are respectively oriented The second extension is adjacent. The pixel structure of claim 1, wherein the second electrode and the data line belong to the same film layer. The pixel structure of claim 1, wherein the first extending portion has a trapezoidal shape or a rectangular shape, and an angle between the sidewall of the first extending portion and the extending direction of the data line is greater than Or equal to 30 degrees and less than 90 degrees. The pixel structure of claim 1, wherein the first extensions are rectangular in shape, and the first extensions have a line width of 0.5 to 5 micrometers. The pixel structure of claim 1, wherein the geometric shapes are trapezoidal, and an angle between a sidewall of the geometric structure and the extending direction of the data line is greater than or equal to 30 degrees and less than 90 degrees. A pixel structure includes: a scan line and a data line; a switching element electrically connected to the scan line and the data line; a common electrode comprising: a first stem portion substantially parallel to the data line One extending direction; and at least two first branch portions extending from the first trunk portion, the at least two first branch portions being respectively correspondingly connected to two sides of the first trunk portion, and the at least two At least one of the branch portions includes: at least one first extension portion; and at least one first ladder structure connected between the first trunk portion and the corresponding first extension portion; and a pixel electrode, and The common electrode is separated and electrically connected to the switching element, wherein the pixel electrode comprises: a second trunk portion overlapping the first trunk portion; and at least two second branch portions from the second trunk portion Extendingly, the at least two second branch portions are respectively correspondingly connected to two sides of the second trunk portion, and at least one of the at least two second branch portions comprises: at least one second extension portion; and at least one First A ladder structure, connected between the second extending portion and the second main portion corresponding to, wherein the plurality of first branch portions and the plurality of second branch portions are staggered along the extending direction of the data line. The pixel structure of claim 15, wherein the first extending portion has a trapezoidal shape or a rectangular shape, and an angle between the sidewall of the first extending portion and the extending direction of the data line is Greater than or equal to 30 degrees and less than 90 degrees. The pixel structure of claim 15, wherein an angle between the sidewall of the first ladder structure and the extending direction of the data line is 30 to 60 degrees.